Had new hub 3.0 fitted today. Started flashing soon after installation. Been on phone ever since....collective wisdom is don't worry and it's just updating. The wifi light will stop flashing in 24hours.
Will wait and see as it's been flashing for 3 weeks over two different hubs.
If anyone has got has got to the bottom of this please help.
Interesting, if it is doing it on two different hubs it is less likely to be faulty hub hardware. Does it do it with no devices connected, I wonder if it is picking up something not quite right with the wireless network.
I switched all my devices of and rebooted hub 3. Switched on all my devices one by one over a 24hr period. Allowing time between each device.
After two iPad pro, one HP laptop, and HTC8 phone, Amazon firestick, google chrome cast were reconnected over Wi-Fi along with now TV and printer by cable it took a day before the green Wi-Fi light began flashing again.
My Wi-Fi used to be high 40's to 50Meg now it's back into the 20 and 30's. 10 feet away and one wall between me and hub 3.